/** 定义字体方法 */
.font-cls(@size: 16px,@color: red) {
    font-family: "my-font" !important;
    font-size: @size;
    color: @color;
    font-style: normal;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}